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| DOI | Trouver le DOI : https://doi.org/10.1038/s41467-023-41871-w |
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| Auteur | Rechercher : Du, Cheng; Rechercher : Mills, Joel P.; Rechercher : Yohannes, Asfaw G.Identifiant ORCID : https://orcid.org/0000-0002-8635-1965; Rechercher : Wei, Wei; Rechercher : Wang, Lei; Rechercher : Lu, Siyan; Rechercher : Lian, Jian-Xiang; Rechercher : Wang, Maoyu; Rechercher : Guo, TaoIdentifiant ORCID : https://orcid.org/0000-0002-9909-6705; Rechercher : Wang, XiyangIdentifiant ORCID : https://orcid.org/0000-0002-7591-6676; Rechercher : Zhou, HuaIdentifiant ORCID : https://orcid.org/0000-0001-9642-8674; Rechercher : Sun, Cheng-Jun; Rechercher : Wen, John Z.Identifiant ORCID : https://orcid.org/0000-0002-1258-7684; Rechercher : Kendall, BrianIdentifiant ORCID : https://orcid.org/0000-0002-8914-2309; Rechercher : Couillard, Martin1; Rechercher : Guo, Hongsheng1; Rechercher : Tan, ZhongChao; Rechercher : Siahrostami, SamiraIdentifiant ORCID : https://orcid.org/0000-0002-1192-4634; Rechercher : Wu, Yimin A.Identifiant ORCID : https://orcid.org/0000-0002-3807-8431 |
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| Affiliation | - Conseil national de recherches du Canada. Innovations dans les énergies propres
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| Format | Texte, Article |
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| Résumé | Electrocatalytic CO₂ reduction into value-added multicarbon products offers a means to close the anthropogenic carbon cycle using renewable electricity. However, the unsatisfactory catalytic selectivity for multicarbon products severely hinders the practical application of this technology. In this paper, we report a cascade AgCu single-atom and nanoparticle electrocatalyst, in which Ag nanoparticles produce CO and AgCu single-atom alloys promote C-C coupling kinetics. As a result, a Faradaic efficiency (FE) of 94 ± 4% toward multicarbon products is achieved with the as-prepared AgCu single-atom and nanoparticle catalyst under ~720 mA cm−2 working current density at −0.65 V in a flow cell with alkaline electrolyte. Density functional theory calculations further demonstrate that the high multicarbon product selectivity results from cooperation between AgCu single-atom alloys and Ag nanoparticles, wherein the Ag single-atom doping of Cu nanoparticles increases the adsorption energy of *CO on Cu sites due to the asymmetric bonding of the Cu atom to the adjacent Ag atom with a compressive strain. |
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| Date de publication | 2023-10-05 |
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| Maison d’édition | Nature Research |
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| Dans | |
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| Langue | anglais |
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| Publications évaluées par des pairs | Oui |
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| Exporter la notice | Exporter en format RIS |
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| Signaler une correction | Signaler une correction (s'ouvre dans un nouvel onglet) |
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| Identificateur de l’enregistrement | 283b6604-08b0-45aa-90c6-29b1df4f5c56 |
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| Enregistrement créé | 2024-05-29 |
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| Enregistrement modifié | 2024-05-29 |
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